People Who Fail To Use Turn Signals
When I am emperor, I will find the people who fail to use turn signals, whether by not signaling in general or by suddenly slowing down then flicking the signal for two blinks after starting to turn. I will have them shot them out of cannons.
They will have a choice, however, from two cannons. One will point directly at a brick wall. The other will point at a huge mound of pillows and marshmallows. Of course, after they choose the pillow cannon, my minions will suddenly point it at the brick wall after all. Hey, they should have been able to read my mind.